WO2016141780A1 - 一种便携式两轮车的前轮轮毂内转向结构 - Google Patents

一种便携式两轮车的前轮轮毂内转向结构 Download PDF

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Publication number
WO2016141780A1
WO2016141780A1 PCT/CN2016/071716 CN2016071716W WO2016141780A1 WO 2016141780 A1 WO2016141780 A1 WO 2016141780A1 CN 2016071716 W CN2016071716 W CN 2016071716W WO 2016141780 A1 WO2016141780 A1 WO 2016141780A1
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Prior art keywords
steering bearing
steering
hub
fixed
front wheel
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PCT/CN2016/071716
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English (en)
French (fr)
Inventor
欧阳湘林
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北京健行天下环保科技有限公司
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Application filed by 北京健行天下环保科技有限公司 filed Critical 北京健行天下环保科技有限公司
Priority to US15/563,572 priority Critical patent/US10377437B2/en
Priority to EP16761007.0A priority patent/EP3266691B1/en
Publication of WO2016141780A1 publication Critical patent/WO2016141780A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/32—Steering heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0005—Hubs with ball bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/36—Frame parts shaped to receive other cycle parts or accessories for attaching saddle pillars, e.g. adjustable during ride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/005—Steering pivot axis arranged within the wheel, e.g. for a hub center steering arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/06—Bearings specially adapted for steering heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/12—Handlebars; Handlebar stems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/18—Connections between forks and handlebars or handlebar stems

Definitions

  • the invention relates to a steering structure, in particular to a front wheel hub inner steering structure of a portable two-wheeled vehicle.
  • the directional control system of the two-wheeled vehicle mainly includes a steering shaft connected to the vehicle body disposed at the front end of the vehicle body and a front fork mounted on the steering shaft, and the control of the handlebar connected to the front fork is Achieve the turn.
  • the present invention is directed to the disadvantages of the prior art, and provides a front wheel hub inner steering structure of a portable two-wheeled vehicle.
  • the steering structure of the front wheel hub of the portable two-wheeled vehicle of the present invention comprises a front wheel mounted on the front end of the body of the two-wheeled vehicle, and a grip disposed at the front end of the body of the two-wheeled vehicle, and further comprising an upright fixed to Steering bearing sleeve at the front end of the vehicle body;
  • a steering bearing fixing rod rotatable in the steering bearing sleeve is disposed in the steering bearing sleeve; the steering bearing fixing rod is fixedly connected with the grip and synchronously rotated with the grip;
  • a rotatable front wheel is disposed on the steering bearing fixing rod.
  • the outer wall of the steering bearing sleeve is provided with at least one fixing member, and is fixedly connected to the front end of the vehicle body through the fixing member.
  • the steering wheel inner steering structure of the portable two-wheeled vehicle of the present invention further includes a steering bearing.
  • the steering bearing fixing rod is rotatably mounted in the steering bearing sleeve through the steering bearing.
  • the front wheel includes a fixed inner hub and an outer wheel rotatable relative to the fixed inner hub;
  • the fixed inner hub is annular, and the plane in which the fixed inner hub is located coincides with the axis of the steering bearing fixing rod;
  • a fixed mounting seat is disposed on the fixed inner hub, and the fixed inner hub is fixedly mounted on the steering bearing fixing rod through the fixed mounting seat; the grip is mounted on the fixed mounting seat.
  • the outer wheel includes an outer hub and a tire disposed on the outer hub;
  • a rotary coupling device is also included, the outer hub being rotatably sleeved over the outer ring of the fixed inner hub by the rotary coupling.
  • the rotary connecting device includes a ball frame disposed between the outer hub and the fixed inner hub, and a plurality of balls are disposed in the ball frame. And the balls are in rolling contact with the outer hub and the fixed inner hub, respectively.
  • a central portion of the fixed mounting seat is provided with a mounting hole, and the fixed inner hub is fixedly mounted on the mounting hole through a bolt through the mounting hole.
  • the two ends of the fixed mounting seat are respectively provided with mounting fixing holes, the ends of the grips have a left branch and a right branch, and the left branch and the right branch are respectively mounted on the two ends of the fixed mount by fixing bolts.
  • a space for the outer wheel to rotate is formed between the left branch and the right branch.
  • the steering wheel bearing compression ring is further included, and the steering bearing pressing ring is engaged with the end of the steering bearing sleeve, and is pressed against the Steering bearings.
  • the front wheel hub inner steering structure of the portable two-wheeled vehicle of the present invention by providing a steering bearing sleeve fixed to the front end of the vehicle body and a steering bearing fixing rod rotatable in the steering bearing sleeve, and the inner hub and The grip is fixedly connected with the steering bearing fixing rod, and the steering force is balanced, the structure is simple, the operation is convenient, and the running stability can be greatly improved.
  • FIG. 1 is an exploded perspective view showing a steering structure of a front wheel hub of a portable two-wheeled vehicle according to the present invention
  • FIG. 2 is a bottom view of the steering structure of the front wheel hub of the portable two-wheeled vehicle of the present invention.
  • the front wheel hub inner steering structure of the portable two-wheeled vehicle of the present invention is applicable to a two-wheeled vehicle of a small wheel type structure, which comprises a front end of a vehicle body 1 mounted on a two-wheeled vehicle.
  • the front wheel, and the grip 6 provided at the front end of the body 1 of the two-wheeled vehicle further includes a steering bearing sleeve 2 that is erected and fixed to the front end of the vehicle body 1.
  • at least one fixing member may be disposed on the outer wall of the steering bearing sleeve 2, and is fixedly connected to the front end of the vehicle body 1 through the fixing member.
  • through holes 11 are opened at the front end of the vehicle body 1, and four through holes 11 are evenly distributed on each side of the front end of the vehicle body 1.
  • a mounting screw hole 21 is disposed on the outer wall of the steering bearing sleeve 2, and the bolt 12 is inserted through the through hole 11 and screwed into the mounting screw hole 21, thereby fixing the steering bearing sleeve 2 to the vehicle body 1 Front end.
  • a steering bearing fixing rod 4 rotatable in the steering bearing sleeve 2 is disposed in the steering bearing sleeve 2.
  • the steering bearing fixing rod 4 is fixedly coupled to the grip and rotates in synchronization with the grip.
  • a steering bearing is further provided (the steering bearing may specifically include a steering bearing 22 and a steering bearing respectively disposed at the leading end and the end of the steering bearing fixing rod 4) 23)
  • the steering bearing fixing rod 4 is rotatably mounted in the steering bearing sleeve 2 through the steering bearing (ie, the steering bearing 22, the steering bearing 23).
  • a steering bearing pressing ring may be disposed, and the steering bearing pressing ring is engaged with the end of the steering bearing sleeve to resist the steering bearing.
  • two steering bearing pressing rings 411, 412 are provided, and the steering bearing pressing ring 411 and the steering bearing pressing ring 412 are respectively located at both ends of the steering bearing sleeve 2, and respectively The card is coupled to both ends of the steering bearing sleeve 2.
  • a rotatable front wheel is provided on the steering bearing fixing rod 4.
  • the front wheel includes a fixed inner hub 3 and an outer wheel rotatable relative to the fixed inner hub 3.
  • the fixed inner hub 3 is annular, and the plane of the fixed inner hub 3 coincides with the axis of the steering bearing fixing rod 4, that is, the steering bearing fixing rod 4 is located parallel to the fixed inner hub 3.
  • the inner region of the inner hub 3 is fixed.
  • a fixed mounting seat 31 is disposed on the fixed inner hub 3, and the fixed inner hub 3 is fixedly mounted on the steering bearing fixing rod 4 through the fixed mounting seat 31; and the grip is mounted on the Fix the mount 3.
  • the outer wheel may specifically include an outer hub 5 and a tire 51 disposed on the outer hub 5. Also included is a rotary coupling device that is rotatably sleeved over the outer ring of the fixed inner hub 3 by the rotational connection.
  • the rotary connecting device specifically includes a ball holder 52 disposed between the outer hub 5 and the fixed inner hub 3, and a plurality of balls (not shown) are disposed in the ball holder 52, and The balls are in rolling contact with the outer hub 5 and the fixed inner hub 3, respectively.
  • the outer hub 5 is rotated about the fixed fixed inner hub 3 by rollers and ball cages 52.
  • the middle portion of the fixed mounting seat 31 is provided with a mounting hole 312.
  • the fixed inner hub 3 is fixedly mounted to the screw hole 413 of the steering bearing fixing rod 4 via the mounting hole 312 through the bolt 311.
  • another mount 314 may be provided on the opposite side of the fixed mount 31 and connected to the other end of the steering bearing fixing rod 4 with the bolt 24 passing through the mount 314.
  • Mounting fixing holes 313 are respectively disposed at two ends of the fixed mounting seat 31, and the ends of the grips 6 have a left branch and a right branch (not shown), and the left branch and the right branch are respectively fixed by fixing
  • the bolts are attached to the mounting fixing holes 313 at both ends of the fixed mount 31.
  • a space for the outer wheel to rotate is formed between the left branch and the right branch, thereby achieving the purpose of the fixed inner hub 3 being fixed and the outer wheel being freely rotatable about the fixed inner hub 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Steering Controls (AREA)

Abstract

一种便携式两轮车的前轮轮毂内转向结构，包括安装于两轮车的车体（1）前端的前轮，以及设置于两轮车的车体（1）前端的握把（6），还包括竖立固定于车体（1）前端的转向轴承套管（2）；所述转向轴承套管（2）内设置有可于该转向轴承套管（2）内转动的转向轴承固定杆（4）；该转向轴承固定杆（4）与所述握把（6）固定连接，并与所述握把（6）同步转动；在该转向轴承固定杆（4）上设置有可转动的前轮。该转向结构中，通过设置固定于车体（1）前端的转向轴承套管（2）和可于该转向轴承套管（2）内转动的转向轴承固定杆（4），并将内毂和握把与该转向轴承固定杆（4）固定连接，实现了转向受力均衡、结构简单、操作方便，能大大提高行驶稳定性。

Description

一种便携式两轮车的前轮轮毂内转向结构 技术领域
本发明涉及一种转向结构，尤其涉及一种便携式两轮车的前轮轮毂内转向结构。
背景技术
现有技术中，两轮车的方向控制系统主要包括设置于车体前端的与车体连接的转向轴和安装于该转向轴上的前叉，通过对与前叉连接的车把的控制来实现转向。
但是，在便携性的两轮车中，此种结构就存在诸多的不足，例如，体积过大而无法满足两轮车的便携性需求；又或者，为了实现两轮车的便携性而将转向系统设计为折叠系统的一部分，又带来了方向控制不稳的问题，存在行驶安全隐患。
发明内容
本发明针对现有技术的弊端，提供一种便携式两轮车的前轮轮毂内转向结构。
本发明所述的便携式两轮车的前轮轮毂内转向结构，包括安装于两轮车的车体前端的前轮，以及设置于两轮车的车体前端的握把，还包括竖立固定于车体前端的转向轴承套管；
所述转向轴承套管内设置有可于该转向轴承套管内转动的转向轴承固定杆；该转向轴承固定杆与所述握把固定连接，并与所述握把同步转动；
在该转向轴承固定杆上设置有可转动的前轮。
本发明所述的便携式两轮车的前轮轮毂内转向结构中，所述转向轴承套管外壁设置有至少一个固定件，并通过该固定件与所述车体前端固定连接。
本发明所述的便携式两轮车的前轮轮毂内转向结构中，还包括转向轴承， 所述转向轴承固定杆通过所述转向轴承可转动的安装于所述转向轴承套管内。
本发明所述的便携式两轮车的前轮轮毂内转向结构中，所述前轮包括固定内毂和可相对于该固定内毂转动的外轮；
其中，所述固定内毂为环形，该固定内毂所在的平面与所述转向轴承固定杆的轴线重合；
在所述固定内毂上设置有固定安装座，所述固定内毂通过所述固定安装座固定安装于所述转向轴承固定杆上；所述握把则安装于所述固定安装座上。
本发明所述的便携式两轮车的前轮轮毂内转向结构中，所述外轮包括外毂以及设置于该外毂上的轮胎；
还包括转动连接装置，所述外毂通过所述转动连接装置而可转动地套设于所述固定内毂的外圈。
本发明所述的便携式两轮车的前轮轮毂内转向结构中，所述转动连接装置包括设置于外毂与固定内毂之间的滚珠架，在所述滚珠架内设置有多个滚珠，且所述滚珠分别与所述外毂和固定内毂滚动接触。
本发明所述的便携式两轮车的前轮轮毂内转向结构中，所述固定安装座的中部设置有安装孔，所述固定内毂经由螺栓穿设过所述安装孔而固定安装于所述转向轴承固定杆上；
所述固定安装座的两端分别设置有安装固定孔，所述握把的末端则具有左分支和右分支，且所述左分支和右分支分别通过固定螺栓而安装于固定安装座两端的安装固定孔；
在所述左分支和右分支之间形成有供外轮转动的空间。
本发明所述的便携式两轮车的前轮轮毂内转向结构中，还包括转向轴承压圈，所述转向轴承压圈卡接于所述转向轴承套管的端部，并抵顶住所述转向轴承。
本发明所述的便携式两轮车的前轮轮毂内转向结构中，通过设置固定于车体前端的转向轴承套管和可于该转向轴承套管内转动的转向轴承固定杆，并将内毂和握把与该转向轴承固定杆固定连接，实现了转向受力均衡、结构简单、操作方便，能大大提高行驶稳定性。
附图说明
图1为本发明所述便携式两轮车的前轮轮毂内转向结构的分解示意图；
图2为本发明所述便携式两轮车的前轮轮毂内转向结构的仰视示意图。
具体实施方式
下面结合附图对本发明做进一步的详细说明，以令本领域技术人员参照说明书文字能够据以实施。
如图1、图2所示，本发明所述的便携式两轮车的前轮轮毂内转向结构，适用于小轮式结构的两轮车，其包括安装于两轮车的车体1前端的前轮，以及设置于两轮车的车体1前端的握把6，还包括竖立固定于车体1前端的转向轴承套管2。本发明中，可在所述转向轴承套管2的外壁设置至少一个固定件，并通过该固定件与所述车体1的前端固定连接。在本实施例中，是在所述车体1的前端开设了四个通孔11，并令四个通孔11在车体1的前端的每一侧均布两个。对应的，在所述转向轴承套管2的外壁设置了安装螺孔21，以螺栓12穿设过通孔11并旋入安装螺孔21，从而将转向轴承套管2固定安装于车体1的前端。
本发明中，在所述转向轴承套管2内设置有可于该转向轴承套管2内转动的转向轴承固定杆4。该转向轴承固定杆4与所述握把固定连接，并与所述握把同步转动。为确保所述转向轴承固定杆4转动的更加平滑，本发明中，还设置了转向轴承(该转向轴承可具体包括分别设置于转向轴承固定杆4的首端和末端的转向轴承22、转向轴承23)，所述转向轴承固定杆4即通过所述转向轴承(即转向轴承22、转向轴承23)可转动的安装于所述转向轴承套管2内。进一步的，还可设置转向轴承压圈，并令所述转向轴承压圈卡接于所述转向轴承套管的端部，以抵顶住所述转向轴承。具体而言，在本实施例中，设置了两个转向轴承压圈411、412，所述转向轴承压圈411和转向轴承压圈412分别位于所述转向轴承套管2的两端，并分别卡接于该转向轴承套管2的两端。当所述转向轴承压圈411、转向轴承压圈412卡接于转向轴承套管2时，其朝向转向轴承套管2内部的一侧分别抵顶住转向轴承22和转向 轴承23。
本发明中，在所述转向轴承固定杆4上设置有可转动的前轮。具体而言，如图1所示，所述前轮包括固定内毂3和可相对于该固定内毂3转动的外轮。其中，所述固定内毂3为环形，该固定内毂3所在的平面与所述转向轴承固定杆4的轴线重合，即所述转向轴承固定杆4是与该固定内毂3平行的位于所述固定内毂3的环形区域内。在所述固定内毂3上设置有固定安装座31，所述固定内毂3通过所述固定安装座31固定安装于所述转向轴承固定杆4上；而所述握把则安装于所述固定安装座3上。
本发明中，所述外轮可具体包括外毂5以及设置于该外毂5上的轮胎51。还包括转动连接装置，所述外毂5是通过所述转动连接装置而可转动地套设于所述固定内毂3的外圈。本实施例中，所述转动连接装置具体包括了设置于外毂5与固定内毂3之间的滚珠架52，在所述滚珠架52内设置有多个滚珠(图中未示)，且所述滚珠分别与所述外毂5和固定内毂3滚动接触。借由滚柱及滚珠架52，所述外毂5得以绕固定的固定内毂3转动。
本发明中，所述固定安装座31的中部设置有安装孔312，所述固定内毂3经由螺栓311穿设过所述安装孔312而固定安装于所述转向轴承固定杆4的螺孔413上。为稳固起见，可在所述固定安装座31的对侧设置另一个安装座314，并以螺栓24穿设过该安装座314而连接于转向轴承固定杆4的另一端。
在所述固定安装座31的两端分别设置有安装固定孔313，所述握把6的末端则具有左分支和右分支(图中未示)，且所述左分支和右分支分别通过固定螺栓而安装于固定安装座31两端的安装固定孔313。在所述左分支和右分支之间形成有供外轮转动的空间，以此实现固定内毂3固定不动，而外轮可绕所述固定内毂3自由转动的目的。
尽管本发明的实施方案已公开如上，但其并不仅仅限于说明书和实施方式中所列运用，它完全可以被适用于各种适合本发明的领域，对于熟悉本领域的人员而言，可容易地实现另外的修改，因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节和这里示出与描述的图例。

Claims (8)

  1. 一种便携式两轮车的前轮轮毂内转向结构，包括安装于两轮车的车体前端的前轮，以及设置于两轮车的车体前端的握把，其特征在于，还包括竖立固定于车体前端的转向轴承套管；
    所述转向轴承套管内设置有可于该转向轴承套管内转动的转向轴承固定杆；该转向轴承固定杆与所述握把固定连接，并与所述握把同步转动；
    在该转向轴承固定杆上设置有可转动的前轮。
  2. 如权利要求1所述的便携式两轮车的前轮轮毂内转向结构，其特征在于，所述转向轴承套管外壁设置有至少一个固定件，并通过该固定件与所述车体前端固定连接。
  3. 如权利要求1所述的便携式两轮车的前轮轮毂内转向结构，其特征在于，还包括转向轴承，所述转向轴承固定杆通过所述转向轴承可转动的安装于所述转向轴承套管内。
  4. 如权利要求1所述的便携式两轮车的前轮轮毂内转向结构，其特征在于，所述前轮包括固定内毂和可相对于该固定内毂转动的外轮；
    其中，所述固定内毂为环形，该固定内毂所在的平面与所述转向轴承固定杆的轴线重合；
    在所述固定内毂上设置有固定安装座，所述固定内毂通过所述固定安装座固定安装于所述转向轴承固定杆上；所述握把则安装于所述固定安装座上。
  5. 如权利要求4所述的便携式两轮车的前轮轮毂内转向结构，其特征在于，所述外轮包括外毂以及设置于该外毂上的轮胎；
    还包括转动连接装置，所述外毂通过所述转动连接装置而可转动地套设于所述固定内毂的外圈。
  6. 如权利要求5所述的便携式两轮车的前轮轮毂内转向结构，其特征在于，所述转动连接装置包括设置于外毂与固定内毂之间的滚珠架，在所述滚珠架内设置有多个滚珠，且所述滚珠分别与所述外毂和固定内毂滚动接触。
  7. 如权利要求6所述的便携式两轮车的前轮轮毂内转向结构，其特征在于，所述固定安装座的中部设置有安装孔，所述固定内毂经由螺栓穿设过所 述安装孔而固定安装于所述转向轴承固定杆上；
    所述固定安装座的两端分别设置有安装固定孔，所述握把的末端则具有左分支和右分支，且所述左分支和右分支分别通过固定螺栓而安装于固定安装座两端的安装固定孔；
    在所述左分支和右分支之间形成有供外轮转动的空间。
  8. 如权利要求3所述的便携式两轮车的前轮轮毂内转向结构，其特征在于，还包括转向轴承压圈，所述转向轴承压圈卡接于所述转向轴承套管的端部，并抵顶住所述转向轴承。
PCT/CN2016/071716 2015-03-06 2016-01-22 一种便携式两轮车的前轮轮毂内转向结构 WO2016141780A1 (zh)

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